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Guests will be investigating evidence of paranormal activity with a number of experiments including table tipping, seance, glass swirling, ouija, dowsing and scrying.

The team will also have K2 meters, infra red thermometers, sensor alarms and ghost boxes on hand to use.

The ghosts of Ruthin Gaol

William Hughes of Denbigh

(Image: Getty Images)

William Hughes was the only person ever executed at the prison. He was originally jailed for deserting his family in 1902 - a crime in those days - and on his release from Shrewsbury Gaol, he found his wife living with another man.

Although Mrs Hughes was simply a housekeeper for John Maddocks, a local collier, he assumed she had married him and moved on.

So he took a double barrelled shotgun with two cartridges and travelled to the colliery. Mr Maddocks was away on business, but Hughes' wife was working in the house.

As she opened the front door to Hughes, he shot both barrels into her, killing her instantly. It was reported that “the gun had been fired at such close range that the clothing of the woman caught fire, and her body was charred”.

Hughes then walked to the nearest police station and handed himself in.

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After entering a plea of insanity, Mr Hughes was assessed at the Denbigh Hospital, who found he was not of sound mind. However, this did not save him and the jury took just 10 minutes to find him guilty of murder.

At 8am on Tuesday February 17, 1903, William Hughes was hanged at Ruthin Gaol for the murder of his wife at Rhosrobin near Wrexham .

Hughes' ghost is said to be particularly drawn to women, with many claiming to have been touched or sense someone near them.

The room he spent his last night in features a display with a motion sensor that sets off commentary and it often begins to play even when nobody is in the cell or anywhere near it.

William Kerr

William Kerr simply vanished one day while on duty (Image: Mirrorpix)

William Kerr is an ex-prison guard at Ruthin Gaol who simply vanished one day during his rounds.

It is believed he was popular with other staff members but was hated by the inmates, making them go without food and often beating and abusing the prisoners for little to no reason at all.

When he disappeared, some said the inmates had taken it upon themselves to do away with the cruel gaoler once and for all.

However, a different theory has emerged following a recent vigil at the gaol. The spirit that presented itself claimed that he had not been murdered and instead had deserted his family to be with another woman.

John Jones

The close up of the orb at Ruthin Gaol (Image: Julie Ashton)

Known as the Welsh Houdini, and the Coch Bach y Bala, John Jones managed to escape the walls of Ruthin Gaol on several occasions.

In 1879, he walked straight out of the prison while guards were preoccupied eating their supper.

He was also known as The Little Welsh Terror and The Little Turpin, and fast developed a reputation as a poacher and determined thief, spending more than half of his 60 years in most of the prisons in North Wales, and many more in England.